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Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
OPERATOR'S MANUAL
21" Self-Propelled Mower — Model Series 990
IMPORTANT
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brush-
covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any).
If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law
(Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester
for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland,
Ohio 44136-0019.
FORM NO. 770-10090J
PRINTED IN U.S.A
CUB CADET LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
10/25/2006
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Summary of Contents for Cub Cadet 990 Series
- Page 1 (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019. FORM NO. 770-10090J PRINTED IN U.S.A CUB CADET LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 10/25/2006...
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Page 2: Table Of Contents
Safety Labels ............ 17 Operating Your Lawn Mower ......8 Parts List ............18 Cub Cadet LLC reserves the right to change product specifications, designs, and equipment without notice and without incurring obligation. Finding and Recording Model Number BEFORE ASSEMBLING YOUR NEW EQUIPMENT,... -
Page 3: Slope Gauge
Use this page as a guide to determine slopes where you may not operate safely. Do not operate your lawn mower on such slopes. Slope Gauge WARNING Do not mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-1/2 feet every 10 feet). -
Page 4: Safe Operation Practices
WARNING: Engine Exhaust, some of its constituents, and certain vehicle compo- nents contain or emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm. DANGER: This machine was built to be operated according to the rules for safe operation in this manual. -
Page 5: Slope Operation
19. Shut the engine off and wait until the blade comes to a 6. Extinguish all cigarettes, cigars, pipes and other sources complete stop before removing the grass catcher or unclog- of ignition. ging the chute. 7. Never fuel machine indoor because flammable vapors will The cutting blade continues to rotate for a few seconds after accumulate in the area. -
Page 6: Setup And Adjustment
1. Remove any packing material which may be between upper and lower handles. a. Pull up and back on upper handle as shown in Figure 3-1. Make certain the lower handle is seated securely into the handle mounting brackets. b. Tighten hand knobs securing upper handle to lower handle. - Page 7 c. Lift chute door on the grass bag adapter and slide grass bag onto the adapter. See Figure 3-5. 6. Follow steps below to install the side discharge chute: a. Remove mulching baffle or grass bag adapter from unit by disconnecting wing nuts. b.
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Page 8: Operating Your Lawn Mower
Know Your Lawn Mower Blade Control Electric Start Drive Control Operating Shift Lever Your Lawn Recoil Height Adjustment Lever Starter Mower WARNING The blade control Figure 4-1 mechanism is a NOTE: Move the shift lever only when the engine is Now that you have set up your lawn mower for opera- safety device. -
Page 9: Starting Engine
Starting Engine WARNING: Be sure no one other than the operator is standing near the lawn mower while starting engine or operat- ing mower. Never run engine indoors or in enclosed, poorly ventilated areas. Engine exhaust contains carbon monoxide, an odorless and deadly Operating gas. -
Page 10: Maintaining Your Lawn Mower
Lubrication 1. Lubricate pivot points on the blade control at least once a season with light oil. The blade control must operate freely in both directions. See Figure 5-1. 2. Lubricate wheels and casters at least once a season with light oil (or motor oil). If wheels are removed for Maintaining any reason, lubricate the axle bolt and inner surface of the wheel with light oil. -
Page 11: Blade Care
Shift Lever Cable Periodic adjustment of the six speed shift cable may be necessary due to normal wear on the cable. Adjustment is needed if all six speeds do not work. The adjustable cable bracket is located on the left side of the mower beside the engine. - Page 12 Belt Care 1. Disconnect the spark plug wire and ground it against the engine. 2. Drain the fuel tank or place a piece of plastic beneath the cap to prevent gasoline leakage. 3. Place shift lever in the first position and tip mower on its side (air cleaner side of engine up).
- Page 13 12. Place the new belt over the transmission pulley. Start the belt in the pulley groove and rotate the pulley until the belt is seated in transmission pulley. Six Speed Cable Slot 13. Place the belt between the idler pulley and the belt keeper bracket.
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Page 14: Replacing Battery
Replacing Battery WARNING: Batteries contain sulfuric acid which may cause burns. Do not short circuit or mutilate batteries in any way. Do not put batteries in fire as these may burst or release toxic materials. Maintaining Your Lawn 1. Loosen round handle knobs securing upper and lower handles and carefully fold the upper handle down Mower toward the lower handle as shown in Figure 5-13. - Page 15 2. Insert the battery charger plug into a standard 120 volt household outlet. See Figure 5-15. Charge battery for 8 to 10 hours before initial use. Do not charge longer than 12 hours. The battery should only need to be charged upon initial setup and after any other extended periods of non-use.
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Page 16: Troubleshooting
Problem Cause Remedy 1. Blade control disengaged. 1. Engage blade control. Engine fails to start 2. Spark plug wire disconnected. 2. Connect wire to spark plug. 3. Fuel tank empty or stale fuel. 3. Fill tank with clean, fresh gasoline. 4. -
Page 17: Safety Labels
Off Season Storage and Safety Labels Safety Labels Found On Your Lawn Mower TO REDUCE THE RISK OF INJURY, DO NOT OPERATE UNLESS DISCHARGE COVER OR GRASS CATCHER IS IN ITS PROPER PLACE. IF DAMAGED, REPLACE IMMEDIATELY. WARNING DO NOT remove safety (or any) labels from mower for any reason. - Page 18 Model Series 990 22 25...
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Page 19: Parts List
Ref. Part Number Description Ref. Part Number Description 647-04008 Blade Control 664-0180 Grass Catcher 731-0904A Upper Control Housing 747-0940A Support Rod w/ Rope Guide 731-0620A Drive Control 747-0939 Pivot Rod 731-0905A Lower Control Housing 747-0937 Grass Catcher Frame Parts List 710-1667A C Sunk Tap Screw, #10 x.75 Lg 631-0071... - Page 20 Model Series 990...
- Page 21 Ref. Part Number Description Ref. Part Number Description 714-0474 Cotter Pin 682-7528 Chain Cover Assembly 710-1652 Screw 1/4-14 x .825 741-0324A Flge Bearing .506 ID x .590 Lg 736-0264 Flat Washer.330 ID x.630 OD 682-7526 Transmission Axle Assembly 714-0104 Cotter Pin 618-0263A Transmission Ass’y Complete Parts List...
- Page 22 NOTES Use this page to make notes and write down important information.
- Page 23 NOTES Use this page to make notes and write down important information.
- Page 24 MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by Cub Cadet LLC with e. Replacement parts that are not genuine Cub Cadet parts. respect to new merchandise purchased and used in the United States, its f. Service completed by someone other than an authorized service possessions and territories.